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localdbgetversions-function.md

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title LocalDBGetVersions Function
description LocalDBGetVersions returns all SQL Server Express LocalDB versions available on the computer.
author markingmyname
ms.author maghan
ms.reviewer randolphwest
ms.date 07/14/2025
ms.service sql
ms.topic reference
apilocation sqluserinstance.dll
apiname LocalDBGetVersions
apitype DLLExport

LocalDBGetVersions function

[!INCLUDE SQL Server]

Returns all SQL Server Express LocalDB versions available on the computer.

Header file: msoledbsql.h

Syntax

#define MAX_LOCALDB_VERSION_LENGTH 43typedef WCHAR TLocalDBVersion [ MAX_LOCALDB_VERSION_LENGTH + 1 ] ;
typedef TLocalDBVersion* PTLocalDBVersion;
HRESULT LocalDBGetVersions(
           PTLocalDBVersion pVersion ,
           LPDWORD lpdwNumberOfVersions);

Arguments

pVersionNames

[Output] Contains names of the LocalDB versions that are available on the user's workstation.

lpdwNumberOfVersions

[Input/Output] On input holds the number of slots for versions in the pVersionNames buffer.

On output, holds the number of existing LocalDB versions.

Returns

S_OK: The function succeeded.

Error Description
LOCALDB_ERROR_NOT_INSTALLED SQL Server Express LocalDB isn't installed on the computer.
LOCALDB_ERROR_INVALID_PARAMETER One or more specified input parameters are invalid.
LOCALDB_ERROR_INSUFFICIENT_BUFFER The input buffer is too short, and truncation wasn't requested.
LOCALDB_ERROR_INTERNAL_ERROR An unexpected error occurred. See the event log for details.

Remarks

For a code sample that uses LocalDB API, see SQL Server Express LocalDB reference.

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